EP0021101A1 - Alliage amorphe magnétiquement doux - Google Patents

Alliage amorphe magnétiquement doux Download PDF

Info

Publication number
EP0021101A1
EP0021101A1 EP80102997A EP80102997A EP0021101A1 EP 0021101 A1 EP0021101 A1 EP 0021101A1 EP 80102997 A EP80102997 A EP 80102997A EP 80102997 A EP80102997 A EP 80102997A EP 0021101 A1 EP0021101 A1 EP 0021101A1
Authority
EP
European Patent Office
Prior art keywords
alloys
alloy
soft magnetic
elements
amorphous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP80102997A
Other languages
German (de)
English (en)
Other versions
EP0021101B1 (fr
Inventor
Hans-Reiner Dr. Hilzinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Priority to AT80102997T priority Critical patent/ATE2343T1/de
Publication of EP0021101A1 publication Critical patent/EP0021101A1/fr
Application granted granted Critical
Publication of EP0021101B1 publication Critical patent/EP0021101B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/04—Amorphous alloys with nickel or cobalt as the major constituent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals

Definitions

  • the invention relates to an amorphous soft magnetic alloy containing cobalt, manganese, silicon and boron.
  • amorphous metal alloys can be produced by cooling an appropriate melt so rapidly that solidification occurs without crystallization.
  • the alloys can be obtained in the form of thin strips, the thickness of which can be, for example, a few hundredths of a mm and the width of which can be from a few mm to several cm.
  • the amorphous alloys can be distinguished from the crystalline alloys by means of X-ray diffraction measurements. In contrast to crystalline materials, which show characteristic sharp diffraction lines, In the case of amorphous metal alloys, the intensity in the X-ray diffraction pattern changes only slowly with the diffraction angle, similarly as is the case with liquids or ordinary glass.
  • the amorphous alloys can be completely amorphous or comprise a two-phase mixture of the amorphous and the crystalline state.
  • an amorphous metal alloy means an alloy that is at least 50%, preferably at least 80%, amorphous.
  • the so-called crystallization temperature For every amoapre metal alloy there is a characteristic temperature, the so-called crystallization temperature. If the amorphous alloy is heated to or above this temperature, it changes to the crystalline state in which it remains even after cooling. In the case of heat treatments below the crystallization temperature, however, the amorphous state is retained.
  • the previously known soft magnetic amorphous alloys have a composition corresponding to the general formula M 100-t X t , where M denotes at least one of the metals Co, Ni and Fe and X denotes at least one of the so-called glass-forming elements B, Si, C and P and t between is about 5 and 40.
  • such amorphous alloys can contain, in addition to the metals M, other metals such as the transition metals Cr, Mo, W, V, Nb, Ta, Ti, Zr, Hf and Mn and that in addition to the glass-forming elements or, if appropriate, the elements Al, Ga, In, Ge, Sn, Pb, As, Sb, Bi or Be may also be present instead of these (DE-OS 23 64 131, DE-OS 25 53 003, DE-OS 26 05 615, JP-OS 51-73923).
  • other metals such as the transition metals Cr, Mo, W, V, Nb, Ta, Ti, Zr, Hf and Mn and that in addition to the glass-forming elements or, if appropriate, the elements Al, Ga, In, Ge, Sn, Pb, As, Sb, Bi or Be may also be present instead of these (DE-OS 23 64 131, DE-OS 25 53 003, DE-OS 26 05 615, JP-OS 51-73923).
  • amorphous soft magnetic alloys are those with small, as small as possible smaller, magnetostriction.
  • the smallest possible saturation magnetostriction ⁇ s is an essential prerequisite for good soft magnetic properties, ie a low coercive force and a high permeability.
  • the magnetic properties of amorphous alloys with vanishingly small magnetostriction are practically insensitive to deformation, so that such alloys can easily be wound into cores or processed into deformable shields, for example braids.
  • alloys with zero magnetostriction are not excited to vibrate under AC operating conditions, so that no energy is lost to mechanical vibrations. The core losses can therefore be very low. In addition, there is no annoying buzzing sound that often occurs with electromagnetic devices.
  • Another known group of amorphous alloys with magnetostriction values between about + 5 ⁇ 10 -6 to -5 ⁇ 10 -6 has a composition according to the general formula (Go x Fe 1-x ) a B b C c , where x is in the range from about 0.84 to 1.0, a in the range of about 78 to 85 atomic%, b in the range of about 10 to 22 atomic%, c in the range of 0 to about 12 atomic% and b + c in the range from about 15 to 22 atomic%.
  • these alloys can contain up to about 4 atom% of at least one other transition metal, such as Ti, W, Mo, Cr, Mn, Ni and Cu, and up to about 6 atom% of at least one other metalloid Contain elements such as Si, Al and F, without the desired magnetic properties are significantly deteriorated (DE-OS 27 08 151).
  • at least one other transition metal such as Ti, W, Mo, Cr, Mn, Ni and Cu
  • at least one other metalloid Contain elements such as Si, Al and F
  • amorphous alloys consisting essentially of about 13 to 73 atomic% Co, about 5 to 50 atomic% Ni, and about 2 to 17 atomic% Fe, the total of Co, Ni and Fe is about 80 atomic percent, and the remainder consists essentially of B and minor impurities.
  • These alloys can, based on the total composition, up to about 4 atom% of at least one of the elements Ti, W, Mo, Cr, Mn or Cu and up to about 6 atom% of at least one of the elements Si, Al, C and P included (DE-OS 28 35 389).
  • these alloys can additionally contain 0.5 to 6 atomic% of at least one of the elements Ti, Zr, V, Nb, Ta, Cr, Mo, W, Zn, Al, Ga, In, Ge, Sn , Pb, As, Sb and Bi contain (DE-OS 28 06 052).
  • the object of the invention is to provide a further soft magnetic alloy, in which the amount of saturation magnetostriction
  • low saturation magnetostrictions are achieved with an alloy of the composition (Co a Ni b T c Mn d Fe e ) 100-t (Si x B y M z ) t , where T at least one of the elements Cr, Mo, W, V, Nb, Ta, Ti, Zr and Ef and M are at least one of the elements P, C, Al, Ga, In, Ge, Sn, Pb, As, Sb, Bi and Be and the following relationships apply:
  • a, b, c, d, e and x, y, z mean the atomic proportions of the associated elements, standardized to the total sum 1, of the totality of the metals or metalloids and (100-t) or t the respective proportion of the total of the metals or metalloids in the associated brackets in the alloy in atomic%.
  • the proportion of an individual element in the alloy in atomic% corresponds to the product of the index of the corresponding element and the index of the associated bracket.
  • the magnetostriction constant can be reduced to zero by appropriate measurement of the manganese content.
  • the silicon has an increase in the crystallization temperature and a decrease in the melting temperature and therefore leads to an improved manufacturability of the amorphous alloy.
  • the cooling rate in the preparation of the amorphous alloy is less critical.
  • the transition elements T also increase the crystallization temperature, while the Curie temperature of the alloy is also reduced with increasing metalloid content. Both result in better long-term stability of the magnetic properties of the alloy.
  • the upper limit of the metalloid content is that the Curie temperature must not drop so far that the alloy is no longer ferromagnetic at a normal temperature.
  • the manganese content at which the magnetostriction constant passes through zero becomes smaller as the alloy's metalloid content increases and with increasing proportions of nickel and the other transition elements T.
  • ⁇ s 0
  • the relationship d 0.09 - 0.001 (t - 25 + 10b + 10c) 2 with the additional condition 0.01 ⁇ d applies approximately.
  • the alloys according to the invention already show good soft magnetic properties after production by rapid cooling from the melt, i.e. low coercivity, high permeability and low AC losses.
  • the magnetic properties, in particular of magnetic cores made from the alloy can often be further improved by an annealing treatment below the crystallization temperature.
  • Such a heat treatment can be carried out at temperatures of approximately 250 to 500 ° C., preferably 300 to 460 ° C., and may take approximately 10 minutes to 24 hours, preferably 30 minutes to 4 hours.
  • It is advantageously used in an inert atmosphere, for example vacuum, hydrogen, helium or argon, and in an external magnetic field running parallel to the tape direction, i.e. a longitudinal magnetic field, with a field strength between 1 and 200 A / cm, preferably 5 to 50 A / cm. performed.
  • the shape of the magnetization curve can be adjusted by the cooling rate after the heat treatment. Fast quenching with quenching speeds between 400 K and 10,000 K per hour gives high permeabilities even for small modulations and low losses at high frequencies of, for example, 20 kHz. By contrast, slow cooling at a cooling rate of about 20 to 400 K per hour in the presence of the longitudinal magnetic field gives particularly high maximum permeabilities and small coercive field strengths.
  • the table above also shows the saturation magnetization J s in T and the coercive field strength H c in specified.
  • the values refer to the alloy in the production state without subsequent heat treatment.
  • the relationship between the saturation magnetostriction constant and the manganese content of the alloys is shown graphically in FIG. 1.
  • the zero crossing of the magnetostriction constant occurs with an alloy with about 7 atomic% manganese.
  • Tables II to IV list a number of further alloys according to the application, which were produced in accordance with the preceding example.
  • the alloys listed in Table II have particularly low magnetostriction constants ⁇ s , a relatively high saturation induction J, and even in the state after production without heat treatment, a very low coercive force H c , measured on the stretched strip.
  • the magnitude of the magnetostriction constant is approximately 1 ⁇ 10 -6 . in terms of amount
  • a ring core was wound from a band of an alloy of the composition Co 48.5 Ni 20 Mn 7.5 Si 11 B 13 produced according to the first example, the permeability of which was measured in an alternating magnetic field of 50 Hz.
  • Curve 1 of FIG. 2 shows the dependency of the permeability on the maximum amplitude of the magnetic field. The permeability is on the ordinate, the amplitude H of the magnetic field in indicated on the abscissa.
  • the same core was then subjected to a heat treatment at 380 ° C. for about one hour under hydrogen in a magnetic longitudinal field of about 10 A / cm and then cooled in a magnetic field at a cooling rate of about 100 K / h.
  • the permeabilities subsequently measured in an alternating magnetic field of 50 Hz are shown in curve 2 of FIG. 2.
  • the alloys according to the application are particularly suitable as a material for magnetic shields, sound heads and magnetic cores, in particular if the latter are to be operated at higher frequencies, for example at 20 kHz. Furthermore, because of their low magnetostriction and their very good soft magnetic properties already in the production state, the alloys according to the application are particularly suitable for applications in which the soft magnetic material has to be deformed and subsequently heat treatment is no longer possible.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
EP80102997A 1979-06-15 1980-05-29 Alliage amorphe magnétiquement doux Expired EP0021101B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80102997T ATE2343T1 (de) 1979-06-15 1980-05-29 Amorphe weichmagnetische legierung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792924280 DE2924280A1 (de) 1979-06-15 1979-06-15 Amorphe weichmagnetische legierung
DE2924280 1979-06-15

Publications (2)

Publication Number Publication Date
EP0021101A1 true EP0021101A1 (fr) 1981-01-07
EP0021101B1 EP0021101B1 (fr) 1983-01-26

Family

ID=6073337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102997A Expired EP0021101B1 (fr) 1979-06-15 1980-05-29 Alliage amorphe magnétiquement doux

Country Status (6)

Country Link
US (1) US5200002A (fr)
EP (1) EP0021101B1 (fr)
JP (1) JPS563646A (fr)
AT (1) ATE2343T1 (fr)
CA (1) CA1166042A (fr)
DE (2) DE2924280A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061290A2 (fr) * 1981-03-20 1982-09-29 Matsushita Electric Industrial Co., Ltd. Tête magnétique et son procédé de fabrication
EP0066356A1 (fr) * 1981-03-31 1982-12-08 Masumoto Tsuyoshi Procédé pour la fabrication de fils métalliques fins et amorphes
EP0072574A2 (fr) * 1981-08-18 1983-02-23 Kabushiki Kaisha Toshiba Alliage amorphe pour un noyeau magnétique
EP0080521A1 (fr) * 1981-11-26 1983-06-08 Allied Corporation Alliages de métaux amorphes à basse magnétostriction
EP0088244A1 (fr) * 1982-03-04 1983-09-14 Allied Corporation Alliages vitreux à base de cobalt et contenant du magnanèse, ayant une magnétostriction presque nulle et une induction à la saturation élevée
EP0121046A2 (fr) * 1983-03-31 1984-10-10 Kabushiki Kaisha Toshiba Alliage amorphe par une tête magnétique et tête magnétique avec un alliage amorphe
EP0121649A1 (fr) * 1983-02-04 1984-10-17 Allied Corporation Marqueur amorphe antivol
EP0160166A1 (fr) * 1981-11-26 1985-11-06 Allied Corporation Alliages de métal amorphes à magnétostriction basse
EP0161394A1 (fr) * 1981-11-26 1985-11-21 Allied Corporation Alliages de métal amorphes à magnétostriction basse
EP0291726A2 (fr) * 1987-05-21 1988-11-23 Vacuumschmelze GmbH Alliage amorphe pour éléments détecteurs en forme de rubans
EP0378823A2 (fr) * 1989-01-14 1990-07-25 Vacuumschmelze GmbH Utilisation d'un noyau magnétique dans un transformateur d'interface
WO1994009172A1 (fr) * 1992-10-16 1994-04-28 Allied-Signal Inc. Indicateurs d'harmoniques ameliores fabriques a partir d'alliages magnetiques doux a base de fe-ni possedant une structure nanocristalline
USRE35042E (en) * 1983-02-04 1995-09-26 Allied Corporation Amorphous antipilferage marker
US6580348B1 (en) 1999-02-22 2003-06-17 Vacuumschmelze Gmbh Flat magnetic core

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754251A (en) 1980-09-15 1982-03-31 Tdk Corp Amorphous magnetic alloy material
JPS57193005A (en) * 1981-05-23 1982-11-27 Tdk Corp Amorphous magnetic alloy thin belt for choke coil and magnetic core for the same
JPS5884957A (ja) * 1981-11-14 1983-05-21 Matsushita Electric Ind Co Ltd 非晶質磁性合金
JPS58185743A (ja) * 1982-04-24 1983-10-29 Tdk Corp 磁気ヘッド用非晶質磁性合金薄板の製造方法
US4637843A (en) * 1982-05-06 1987-01-20 Tdk Corporation Core of a noise filter comprised of an amorphous alloy
JPS59150414A (ja) * 1982-12-23 1984-08-28 Toshiba Corp 半導体回路用リアクトル
US6232775B1 (en) * 1997-12-26 2001-05-15 Alps Electric Co., Ltd Magneto-impedance element, and azimuth sensor, autocanceler and magnetic head using the same
JP4755340B2 (ja) * 1998-09-17 2011-08-24 ヴァキュームシュメルツェ ゲーエムベーハー ウント コンパニー カーゲー 直流電流公差を有する変流器
DE10134056B8 (de) * 2001-07-13 2014-05-28 Vacuumschmelze Gmbh & Co. Kg Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens
US6749695B2 (en) 2002-02-08 2004-06-15 Ronald J. Martis Fe-based amorphous metal alloy having a linear BH loop
US6930581B2 (en) * 2002-02-08 2005-08-16 Metglas, Inc. Current transformer having an amorphous fe-based core
US6613275B1 (en) * 2002-07-19 2003-09-02 Metalor Technologies Sa Non-precious dental alloy
JP4445195B2 (ja) * 2002-11-29 2010-04-07 株式会社東芝 アモルファス合金薄帯およびそれを用いた磁心
DE102005034486A1 (de) * 2005-07-20 2007-02-01 Vacuumschmelze Gmbh & Co. Kg Verfahren zur Herstellung eines weichmagnetischen Kerns für Generatoren sowie Generator mit einem derartigen Kern
EP1918407B1 (fr) * 2006-10-30 2008-12-24 Vacuumschmelze GmbH & Co. KG Alliage légèrement magnétique à base de fer et de cobalt ainsi que son procédé de fabrication
US7771545B2 (en) 2007-04-12 2010-08-10 General Electric Company Amorphous metal alloy having high tensile strength and electrical resistivity
US9057115B2 (en) * 2007-07-27 2015-06-16 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron-cobalt-based alloy and process for manufacturing it
US8012270B2 (en) 2007-07-27 2011-09-06 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it
US9312343B2 (en) 2009-10-13 2016-04-12 Cree, Inc. Transistors with semiconductor interconnection layers and semiconductor channel layers of different semiconductor materials

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364131A1 (de) * 1972-12-26 1974-06-27 Allied Chem Amorphe metall-legierung und deren verwendung
DE2546676A1 (de) * 1974-10-21 1976-04-29 Western Electric Co Elektromagnetisches bauelement
DE2553003A1 (de) * 1974-11-29 1976-08-12 Allied Chem Magnetvorrichtungen
DE2605615A1 (de) * 1975-02-15 1976-09-02 Tdk Electronics Co Ltd Magnetkopf
DE2708151A1 (de) * 1976-03-01 1977-09-08 Allied Chem Magnetische legierungen
DE2806052A1 (de) * 1977-02-18 1978-10-19 Tdk Electronics Co Ltd Thermisch stabile amorphe magnetlegierung
DE2835389A1 (de) * 1977-08-15 1979-03-01 Allied Chem Magnetische legierung
DE2855858A1 (de) * 1977-12-28 1979-07-05 Tokyo Shibaura Electric Co Amorphe legierung mit hoher magnetischer permeabilitaet

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505841A (en) * 1974-01-12 1978-03-30 Watanabe H Iron-chromium amorphous alloys
JPS5940900B2 (ja) * 1974-07-01 1984-10-03 トウホクダイガク キンゾクザイリヨウケンキユウシヨチヨウ 高強度、耐疲労、耐全面腐食、耐孔食、耐隙間腐食、耐応力腐食割れ、耐水素脆性用アモルフアス鉄合金
US4144058A (en) * 1974-09-12 1979-03-13 Allied Chemical Corporation Amorphous metal alloys composed of iron, nickel, phosphorus, boron and, optionally carbon
JPS5929644B2 (ja) * 1974-12-24 1984-07-21 東北大学金属材料研究所長 高透磁率アモルフアス合金の磁気特性改質方法
DE2555003A1 (de) * 1975-12-06 1977-06-16 Fraunhofer Ges Forschung Automatisierung des lernvorgangs der bilderfassung bei automatischen handhabungssystemen
JPS59582B2 (ja) * 1976-03-23 1984-01-07 東北大学金属材料研究所長 磁歪が小さく耐摩耗性の大きい磁気ヘツド用非晶質合金およびその製造方法
US4116682A (en) * 1976-12-27 1978-09-26 Polk Donald E Amorphous metal alloys and products thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364131A1 (de) * 1972-12-26 1974-06-27 Allied Chem Amorphe metall-legierung und deren verwendung
DE2546676A1 (de) * 1974-10-21 1976-04-29 Western Electric Co Elektromagnetisches bauelement
DE2553003A1 (de) * 1974-11-29 1976-08-12 Allied Chem Magnetvorrichtungen
DE2605615A1 (de) * 1975-02-15 1976-09-02 Tdk Electronics Co Ltd Magnetkopf
DE2708151A1 (de) * 1976-03-01 1977-09-08 Allied Chem Magnetische legierungen
DE2806052A1 (de) * 1977-02-18 1978-10-19 Tdk Electronics Co Ltd Thermisch stabile amorphe magnetlegierung
DE2835389A1 (de) * 1977-08-15 1979-03-01 Allied Chem Magnetische legierung
DE2855858A1 (de) * 1977-12-28 1979-07-05 Tokyo Shibaura Electric Co Amorphe legierung mit hoher magnetischer permeabilitaet

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061290A3 (en) * 1981-03-20 1983-05-25 Matsushita Electric Industrial Co., Ltd. Magnetic head and method of producing same
EP0061290A2 (fr) * 1981-03-20 1982-09-29 Matsushita Electric Industrial Co., Ltd. Tête magnétique et son procédé de fabrication
EP0066356A1 (fr) * 1981-03-31 1982-12-08 Masumoto Tsuyoshi Procédé pour la fabrication de fils métalliques fins et amorphes
EP0072574A2 (fr) * 1981-08-18 1983-02-23 Kabushiki Kaisha Toshiba Alliage amorphe pour un noyeau magnétique
EP0072574A3 (en) * 1981-08-18 1983-09-14 Kabushiki Kaisha Toshiba Amorphous alloy for magnetic core material
EP0160166A1 (fr) * 1981-11-26 1985-11-06 Allied Corporation Alliages de métal amorphes à magnétostriction basse
EP0080521A1 (fr) * 1981-11-26 1983-06-08 Allied Corporation Alliages de métaux amorphes à basse magnétostriction
EP0161394A1 (fr) * 1981-11-26 1985-11-21 Allied Corporation Alliages de métal amorphes à magnétostriction basse
EP0088244A1 (fr) * 1982-03-04 1983-09-14 Allied Corporation Alliages vitreux à base de cobalt et contenant du magnanèse, ayant une magnétostriction presque nulle et une induction à la saturation élevée
US4553136A (en) * 1983-02-04 1985-11-12 Allied Corporation Amorphous antipilferage marker
EP0121649A1 (fr) * 1983-02-04 1984-10-17 Allied Corporation Marqueur amorphe antivol
USRE35042E (en) * 1983-02-04 1995-09-26 Allied Corporation Amorphous antipilferage marker
EP0121046A2 (fr) * 1983-03-31 1984-10-10 Kabushiki Kaisha Toshiba Alliage amorphe par une tête magnétique et tête magnétique avec un alliage amorphe
EP0121046A3 (en) * 1983-03-31 1986-11-26 Kabushiki Kaisha Toshiba Amorphous alloy for magnetic head and magnetic head with an amorphous alloy
EP0291726A2 (fr) * 1987-05-21 1988-11-23 Vacuumschmelze GmbH Alliage amorphe pour éléments détecteurs en forme de rubans
EP0291726A3 (en) * 1987-05-21 1989-07-05 Vacuumschmelze Gmbh Amorphous alloy for strip-shaped sensor elements
EP0378823A2 (fr) * 1989-01-14 1990-07-25 Vacuumschmelze GmbH Utilisation d'un noyau magnétique dans un transformateur d'interface
EP0378823A3 (fr) * 1989-01-14 1991-04-03 Vacuumschmelze GmbH Utilisation d'un noyau magnétique dans un transformateur d'interface
WO1994009172A1 (fr) * 1992-10-16 1994-04-28 Allied-Signal Inc. Indicateurs d'harmoniques ameliores fabriques a partir d'alliages magnetiques doux a base de fe-ni possedant une structure nanocristalline
US6580348B1 (en) 1999-02-22 2003-06-17 Vacuumschmelze Gmbh Flat magnetic core

Also Published As

Publication number Publication date
EP0021101B1 (fr) 1983-01-26
ATE2343T1 (de) 1983-02-15
JPS6218620B2 (fr) 1987-04-23
US5200002A (en) 1993-04-06
DE2924280A1 (de) 1981-01-08
JPS563646A (en) 1981-01-14
DE3061764D1 (en) 1983-03-03
CA1166042A (fr) 1984-04-24

Similar Documents

Publication Publication Date Title
EP0021101B1 (fr) Alliage amorphe magnétiquement doux
DE69634518T2 (de) Amorphe magnetische glas-überzogene drähte und zugehöriges herstellungsverfahren
EP0007994B1 (fr) Noyau magnétique constitué d'un alliage amorphe magnétiquement doux
DE2855858C2 (de) Glasartige Legierung mit hoher magnetischer Permeabilität
DE2165052C3 (de) Verwendung einer Legierung auf Eisen-Chrom-Kobalt-Basis zur Herstellung von Dauermagneten
DE112010000836T5 (de) Band aus einer weichmagnetischen Legierung und Herstellungsverfahren dafür sowie magnetische Vorrichtung mit dem Band aus einer weichmagnetischen Legierung
DE2721788A1 (de) Magnetische bauelemente mit amorphen legierungen und deren herstellung
DE102007004835A1 (de) Amorphe weichmagnetische Legierung und diese verwendendes Induktions-Bauteil
DE2806052A1 (de) Thermisch stabile amorphe magnetlegierung
EP2697399B1 (fr) Alliage, noyau magnétique et procédé pour fabriquer une bande d'un alliage
EP0005836A2 (fr) Elément constituant inductif et procédé pour sa fabrication
DE19712526A1 (de) Magnetisch weiches Metallegierungsglas auf Fe-Basis
DE19807048C2 (de) Verfahren zur Herstellung von Legierungsgläsern
DE3021536C2 (de) Amorpher Werkstoff
DE2246427C3 (de) Weichmagnetische Legierung, ihre Verwendung und Verfahren zur Einstellung eines Ordnungsgrades von 0,1 bis 0,6 in solchen Legierungen
EP0008001A1 (fr) Elément élastique de blindage, notamment pour cassettes à bande magnétique
DE4230986C2 (de) Nanokristalline, weichmagnetische Legierung
DE2947802C2 (fr)
EP0502397B1 (fr) Procédé de fabrication d'un matériau magnétiquement doux à base de fer à haute magnétisation de saturation et à structure de graines ultrafine
DE2709626C3 (de) Verfahren zum Herabsetzen der Ummagnetisierungsverluste in dünnen Bändern aus weichmagnetischen amorphen Metallegierungen
EP1320110B1 (fr) Procédé de fabrication de noyaux toroidales nanocristallins
DE69834615T2 (de) Herstellungsverfahren für einen Magnetkern aus einer weichmagnetischen nanokristallinen Legierung und Anwendung in einem Differentialschutzschalter
DE2513921C2 (de) Halbharte Magnetlegierung und deren Herstellung
DE3540271C2 (de) Verfahren zur Herstellung einer Schattenmaske für Farbkathodenstrahlröhren
DE3931936C2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL

17P Request for examination filed

Effective date: 19810508

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 2343

Country of ref document: AT

Date of ref document: 19830215

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3061764

Country of ref document: DE

Date of ref document: 19830303

ITTA It: last paid annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS-ALBIS AKTIENGESELLSCHAFT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980414

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980506

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19980514

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980518

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980529

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19980810

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990529

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990531

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990720

Year of fee payment: 20

BERE Be: lapsed

Owner name: VACUUMSCHMELZE G.M.B.H.

Effective date: 19990531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19991201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT